TW201328572A - Air shielding assembly and heat dissipating system with the air shielding assembly - Google Patents

Abstract

The present invention provides an air shield assembly. One end of the air shield assembly connects to a dissipating-heat elements in a housing of a electronic device. The air shield assembly includes a channel, a main portion, at least one group of shield boards, and a block portion. The channel connects to the dissipating-heat elements, the main portion is rotatablely fixed in the channel. The block portion is positioned in the channel according to the main portion. The at least one group of shield boards which are extending from the opposite sides of the main portion, can rotate over the block portion to a first direction. When the at least one group of shield boards rotate to a second direction which is opposite to the first direction, the block portion stops the shield boards. This invention still disclose a heat dissipating system with the air shield assembly.

Description

Windshield structure and heat dissipation system with windproof structure

The invention relates to a wind shield structure and a heat dissipation system having the wind shield structure.

The active cooling mode of a plurality of fans or blowers is very important for electronic devices (such as servers), but the return of hot air caused by one of the fans or blowers not working or failing to work can affect the heat dissipation of the electronic device. As shown in FIG. 1, a heat dissipation system 100 of a server includes two blowers 10 and a chassis 30. The heat dissipation system 100 is configured to dissipate heat from other electronic components (not shown) in the chassis 30. During normal operation, the two air blowers 10 can dissipate heat generated by electronic components in the chassis 30. However, if one of the blowers 10 fails to operate, the hot air portion blown by the other blower 10 enters the chassis 30 by the failed blower 10 to affect the heat dissipation of the electronic components in the chassis 30.

In view of the above, it is necessary to provide a windshield structure and a heat dissipation system that prevent backflow of airflow.

A wind-shielding structure, one end of which is sealed to a heat-dissipating component in an electronic device to prevent external hot air from flowing back into the chassis, the wind-shielding structure including a pipe, a main body portion, at least one set of blocking pieces and a first block The venting portion of the pipe is connected to the venting opening, the main body portion is rotatably mounted in the pipe, and the dam is disposed on the inner side of the pipe corresponding to the main body portion, the at least one set of the blocking piece Formed by opposite sides of the body portion extending away from each other and rotatable in a first direction across the bar, when the at least one set of flaps is rotated in a second direction opposite the first direction, The baffle stops the at least one set of flaps.

A heat dissipation system includes a chassis having a plurality of vents, a plurality of heat dissipating components corresponding to the vents installed in the chassis, and a plurality of windshield structures respectively corresponding to a heat dissipating component, wherein each windshield comprises a pipe a body portion, at least one set of baffles, and a baffle, one end of the pipe abuts to the vent, the main body portion is rotatably mounted in the pipe, and the baffle corresponds to the main body portion Mounted on the inner side of the pipe, the at least one set of baffles are formed by the opposite sides of the main body portion extending away from each other, and are rotated in a first direction across the baffle by the hot air discharged by the blower, the baffle The at least one set of flaps are also stopped from rotating in a second direction opposite the first direction to cover the vent by the at least one set of flaps.

When a blower of the heat dissipation system fails, the corresponding windshield structure can cover the air outlet of the air blower, so as to prevent the hot air blown by the blower that is normally working from flowing back into the server chassis through the faulty blower, affecting the The chassis is cooled.

Referring to FIG. 2, a heat dissipation system 200 of the preferred embodiment of the present invention includes an electronic device chassis, such as a server chassis 40, a plurality of heat dissipating components, such as a blower 50, and a plurality of windshields disposed corresponding to the blower 50. Structure 60. The blower 50 discharges heat in the server cabinet 40 in a timely manner, and the wind shield structure 60 is used to prevent the occurrence of a heat reflow phenomenon. In the embodiment of the present invention, the heat dissipation system 200 having the two air blowers 50 and the second windshield structure 60 will be described as an example.

The server chassis 40 has a substantially rectangular box shape, and two air vents 41 are respectively defined on one side wall of the air blower 50 to respectively correspond to the air outlets of the two air blowers 50.

The blower 50 is a conventional impeller blower.

Referring to FIG. 3 together, the windshield structure 60 includes a duct 61, a main body portion 62, at least one set of flaps 63, a stopper 65, and a baffle 67. In the embodiment of the present invention, the windshield structure 60 having two sets of flaps 63 will be described as an example.

The duct 61 is a hollow tubular body having a rectangular cross section, and has an inner diameter approximately twice that of the air outlet of the blower 50. The duct 61 includes a top wall 611, two side walls 613 respectively connected to the top wall 611 and oppositely disposed, and an exhaust duct 612 disposed in the middle of the duct 61. One end of the duct 61 is butted to the side wall of the chassis 40 to open the vent 41, so that the vent 41 is aligned with the side of the duct 61 away from the top wall 611, and is connected to the outside through the exhaust duct 612. The top wall 611 fixes the block 65 thereon and movably connects the bar 67 so that the bar 67 is disposed against the block 65 and can swing or slide away from the side away from the block 65. .

The main body portion 62 is substantially cylindrical and is rotatably mounted on the opposite side walls 613 of the duct and carries the at least one set of flaps 63 thereon for the at least one The group flap 63 is rotatably mounted in the duct 61.

The at least one set of flaps 63 are formed by opposite sides of the main body portion 62 extending along the plane of the main body portion 62. In the embodiment of the present invention, the two sets of the flaps 63 are symmetrically arranged with the main body portion 62 as a symmetrical axis to form a cross shape, and the angle between each of the two baffles 63 is the same. The size of the blocking piece 63 is slightly smaller than the inner diameter of the duct 61, and the end of the blocking piece 63 perpendicular and away from the top wall 611 is aligned with the air outlet of the air blower 50, and is under the action of the hot air discharged from the air blower 50. The hot air is discharged by rotating in a first direction (counterclockwise in the embodiment of the present invention) indicated by an arrow in FIG. It is to be understood that the number of the flaps 63 is not limited to two groups, and may be three groups, four groups, or the like.

The stopper 65 is fixed to the inner side of the top wall 611 with the main body portion 62, and the stopper 65 extends beyond the length of the top wall 611 to rotate the flap 63 in the duct 61 without hitting The stopper 65 is provided in accordance with the setting. In the embodiment of the present invention, the stopper 65 is integrally formed on the inner wall of the top wall 611. It is to be understood that the stopper 65 can also be fixed in a fixing hole (not shown) formed in the top wall 611.

The baffle 67 is disposed on a side of the block 65 adjacent to the air blower 50, and the length of the baffle 67 extending from the top wall 611 exceeds the length of the block 65, specifically, the baffle 63 is in the duct 61. Rotate and set to the bar 67 as a basis. Thereby, the baffle 67 can swing relative to the stop block 65 in the first direction under the resisting action of each set of the baffle 63, so that each set of the baffle 63 is in the first direction indicated by the arrow in FIG. By rotating the bar 67; when the set of flaps 63 are reversely rotated in a second direction (clockwise in the embodiment of the invention) opposite to the first direction as indicated by the arrow of FIG. When the bar 67 is moved in the direction of the stopper 65, the stopper 65 abuts against the stopper 67, and the stopper 67 is stopped by the stopper 67 to prevent the flap 63 from being reversely rotated. In the embodiment of the present invention, the baffle 67 is hingedly fixed to the top wall 611. It should be understood that the dam 67 can also be mounted on the top wall 611 by sliding a sliding slot (not shown) provided on the top wall 611.

Referring to FIG. 4, the windshield structure 60 is mounted on the air blower 50 during assembly, so that the exhaust duct 612 of the duct 61 is docked to the air outlet of the air blower 50, and the air outlet of the air blower 50 is aligned with the duct 61. The flap 63 is away from the side of the top wall 611. Thereby, the hot air discharged from the air blower 50 acts vertically and away from the blocking piece 63 of the top wall 611 to drive the main body portion 62 and the other group blocking pieces 63 to rotate together in the first direction, so that each set of the blocking pieces 63 sequentially abuts the blocking strip. 67 is rotated in a first direction (ie, away from the stop 65, counterclockwise), thereby passing the bar 67 to enable each flap 63 to continue to rotate about the first direction, and to discharge the blower 50 during the rotation The hot air exits the server chassis 40 through the exhaust duct 612.

Referring to FIG. 4 together, when one of the blowers 50 does not need to work or fails to operate, the other blower 50 will accelerate to compensate for the heat loss caused by the failed blower. At this time, a negative pressure will be generated at the failed blower 50 and the hot air discharged from the normally operating blower 50 may be reversed by the failed blower 50. At this time, the external hot air acts on the blocking piece 63 away from the top wall 611 by the exhaust duct 612, so that the blocking piece 63 is reversely rotated in the second direction indicated by the arrow in FIG. 4 to resist the blocking piece 67. Rotate in the second direction (ie, in the direction of the stop 65, clockwise). At this time, the stopper 65 will resist the stop of the dam 67, cause the dam 67 to abut and stop the flap 63 to abut against the flap 63 of the dam 67 and the flap 63. The other blocking piece 63 disposed on the same straight line covers the air outlet of the air blower 50 to prevent the blocking piece 63 from rotating in the second direction opposite to the first direction to revert the external hot air into the server chassis 40. , to ensure the heat dissipation effect.

When a blower 50 of the heat dissipation system 200 of the present invention fails, the corresponding wind shield structure 60 can cover the air outlet of the blower 50, thereby preventing the hot air portion blown by the normally operated blower 50 from flowing back into the air blower 50 by the faulty blower 50. The server chassis 40 affects the heat dissipation of the chassis 40.

It should be noted that the above embodiments are only intended to illustrate the technical solutions of the present invention and are not intended to be limiting, and the present invention will be described in detail with reference to the preferred embodiments thereof The technical solutions are modified or equivalently substituted without departing from the spirit and scope of the technical solutions of the present invention.

100, 200. . . cooling system

10, 30, 50. . . Blower

30, 40. . . Chassis

41. . . Vent

60. . . Wind shield structure

61. . . pipeline

611. . . Top wall

612. . . Air duct

613. . . Side wall

615. . . End wall

62. . . Main body

63. . . Blank

65. . . Stoppers

67. . . Bar

Figure 1 is a conventional heat dissipation system.

2 is a partially exploded view of a preferred embodiment of the heat dissipation system of the present invention.

3 and 4 are partial cross-sectional enlarged views of the heat dissipation system of Fig. 2.

40. . . Chassis

41. . . Vent

50. . . Blower

61. . . pipeline

611. . . Top wall

612. . . Air duct

62. . . Main body

63. . . Blank

65. . . Stoppers

67. . . Bar

Claims (9)

A wind-shielding structure is configured to seal a heat-dissipating component in a chassis of an electronic device to prevent external hot air from flowing back into the chassis. The improvement is that the wind-shielding structure includes a pipe, a main body, and at least one block. And a strip of the tube, the one end of the pipe is abutted to the heat dissipating component, the main body part is rotatably mounted in the pipe, and the baffle is disposed on the inner side of the pipe corresponding to the main body part, the at least a set of flaps extending from opposite sides of the body portion and rotatable in a first direction across the fence, wherein the at least one set of flaps rotates in a second direction opposite the first direction The dam stops the at least one set of flaps. The windshield structure of claim 1, wherein the windshield structure further comprises a stopper, the stopper is fixed to an inner side of the pipe, the bar is disposed against the stopper, and is opposite to the The dam is offset from the first direction, and the dam stops the dam from shifting in the second direction. The windshield structure of claim 2, wherein the stopper is integrally formed on the inner side of the top wall, and the barrier abutting block is hinged to the inner side of the top wall. The windshield structure of claim 2, wherein the length of the dam extending into the duct exceeds a length of the stopper extending into the duct, the at least one set of flaps resisting the block The bar is offset in a first direction and continues to rotate in the first direction across the bar; the stop stops the bar from rotating in the second direction to stop the at least by the bar A set of flaps rotates in the second direction. A heat dissipation system includes a chassis having a plurality of vents, a plurality of heat dissipating components corresponding to the vents installed in the chassis, and a plurality of windshield structures respectively corresponding to a heat dissipating component, wherein the improvement is as follows: The wind mechanism includes a pipe, a main body portion, at least one set of baffles, and a baffle, one end of the pipe abuts to the vent, the main body portion is rotatably mounted in the pipe, the block The strip corresponding body portion is disposed on the inner side of the pipe, and the at least one set of the baffle is formed by the opposite sides of the main body portion extending away from each other, and is rotated in a first direction across the baffle by the hot air discharged by the air blower. The baffle also stops the at least one set of flaps from rotating in a second direction opposite the first direction to cover the vent by the at least one set of flaps. The heat dissipation system of claim 5, wherein the windshield structure further comprises a stopper, the stopper is fixed to an inner side of the pipe, the bar is disposed against the stopper, and is opposite to the The baffle is offset in the first direction, the stop stop shifting the baffle in the second direction. The heat dissipation system of claim 6, wherein the length of the barrier extending into the duct exceeds a length of the stopper extending into the duct, the at least one set of flaps resisting the block The bar is offset in a first direction and continues to rotate in the first direction across the bar; the stop stops the bar from rotating in the second direction to stop the at least by the bar A set of flaps rotates in the second direction. The heat dissipation system of claim 6, wherein the stopper is integrally formed on the inner side of the top wall, and the barrier is hinged to the inner side of the top wall. The heat dissipation system of claim 5, wherein the inner diameter of the duct is twice the size of the vent, and the hot air discharged from the vent is aligned and actuated on the side of the main body along the first The direction drives the other flaps to rotate together to discharge the hot air from the other end of the exhaust duct, and when the barrier stops the flap, the heat dissipation is covered by a set of flaps resisting the crosspiece The air outlet of the component prevents hot air from flowing from the outside to the inside of the air duct.